Canon Speedlite EL-100 - Manual (Page 56)

56
Flash Firing Restrictions due to
Temperature Increase
When continuous flash or modeling flash is repeatedly fired in short
intervals, the temperature of the flash head, batteries, and the area
near the battery compartment may increase.
Repeated flash firing gradually increases the firing interval to
avoid wearing out or damaging the flash head from overheating.
Continuing to fire the flash in this state will automatically restrict
flash firing.
Flash Firing Restriction
As the internal temperature rises, the firing interval increases to approx.
10 sec. Continuing to fire the flash further increases the flash firing
interval to approx. 45 sec.
Stop using the flash for at least 40 min. when firing is restricted.
Continuous Flash Count and Rest Time
Stop using the flash for at least 40 min. after firing it at full output more than
30 times repeatedly or using modeling flash repeatedly more than 30 times.
CAUTION
When performing continuous flash, do not touch the flash head,
batteries, or the area near the battery compartment.
When continuous flash or modeling flash is repeatedly fired at short intervals, do
not touch the flash head, batteries, or the area near the battery compartment.
The flash head, batteries, and area near the battery compartment may
become hot, resulting in the risk of burn.
o Do not open or close the flash battery compartment cover while flash firing
is restricted. Doing so is very dangerous since the flash firing restriction is
canceled.
o
If flash photography is performed in high temperatures, the firing restrictions
may be activated before the number of flashes listed above is fired.
o
For cautions on the number of flash firings, see page 11 (continuous
flashes) or page 23 (modeling flash).
o
The Speedlite may not fire in rare cases due to environmental factors
such as temperature rise.